[FIXED]Electric upgrade

[Arakash]

Well I do have plans on introducing a "popularity" variable, giving customers a preference to which type of engine they like for example.

Also I plan on increasing/decreasing values for different types of things based on what's being built. If you build a lot of wankles, and everyone else does too, then wankles will get better while everything else will get worse...

Both of these things, especially the last one are really interesting.
I like the idea of having to adapt to new formats if your old ones get less efficient over time because people are using other ones. Or the opposite.